// changing its exit code to a nonzero value.
func (r *reporter) Report(err error) {
	if err == nil {
		panic("Report with nil error")
	}
	st := r.getState()
	scanner.PrintError(st.err, err)
	st.exitCode = 2
}

func (r *reporter) ExitCode() int {
	return r.getState().exitCode
}

// If info == nil, we are formatting stdin instead of a file.